That's a good point. I had several fish in there before and used Seachem ParaGuard in there for treatment. After treatment I made a PWC
and added the carbon filter back in. It's been fishless for about 1 month. I added bacteria to keep the filters replenished a few times.
Perhaps I should start adding bacteria again fir 10 days as though it's a new tank. I thought adding the LR
would help the filters establish the colonies and I'd keep the LR
in there unless I use meds again.
Do you think that would work? I really dint want to add any sand because it would defeat the point of the QT.